One barrel of petroleum holds 42 gallons.
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Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6
The inventor of the Super Soaker squirt gun was a NASA Scientist who also helped develop the Stealth Bomber and the Galileo mission to Jupiter.
7
During photosynthesis, plants emit light humans can’t see, but NASA can see that light from space - and they've even made maps of it!
21